Place your order today by 3pm CST and receive same day shipping of your upgrade. If you have a question about upgrading the RAM in your system, call one of our knowledgeable and friendly reps toll-free at 1-888-648-0527. Arch Computer offers expert advice and installation assistance for those customers who purchase their RAM here.Memory compatibility is paramount for your machine. This is why we continually research and update our memory information to ensure the RAM you purchase will work in your system!